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Analysis
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max time kernel
149s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
09/10/2024, 04:24
Behavioral task
behavioral1
Sample
2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe
Resource
win7-20240903-en
General
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Target
2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe
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Size
53KB
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MD5
12454330717e2aa1a2815cba88c59c65
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SHA1
f3c697ebd3a081f8db70c0fa5f15f155de41e512
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SHA256
d78125652605de0851a927985594c22c5f9c49a334ba20a3e9ba414c4df6269c
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SHA512
2622f385928f36c4f5c571ad819d94249347ecccc73939258dcdd78236019dbe35f9ce6e6e5f7d880fd97d32825e6eca1522f74a96ba8d960ac1ac6eef0c1d2a
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SSDEEP
768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOmo:z6QFElP6n+gKmddpMOtEvwDpj31imo
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 1516 asih.exe -
resource yara_rule behavioral2/memory/3660-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral2/files/0x000c000000023b71-13.dat upx behavioral2/memory/3660-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral2/memory/1516-26-0x0000000000500000-0x0000000000510000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3660 wrote to memory of 1516 3660 2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe 86 PID 3660 wrote to memory of 1516 3660 2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe 86 PID 3660 wrote to memory of 1516 3660 2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-09_12454330717e2aa1a2815cba88c59c65_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3660 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1516
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
54KB
MD580e63462f4eea1a2b7b919b8e31083f9
SHA1f9a0dcccce038cbc33ed1c4b5e8f19f6397d5af1
SHA256b0cdc9a1c9a7aeed8c7ac45c3f79f2a6afa8b1ecd5678b710ae78a2601237a55
SHA5124c96637e72f984c7288924d7fe60a4e7ed13b32ce85622eca56930eed1a6b15d8e9fcd7a31d70bce5b2a31e7bbf08fb4c0bcb029cd6c11c5b801d4bdf9fa6da2